Fix memory leak in batmon #579

	name: Enforce formatting
	on:
	pull_request:
	paths:
	- 'src/**'

	jobs:
	format:
	if: github.event.pull_request.head.repo.full_name == github.repository
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	with:
	# check out HEAD on the branch
	ref: ${{ github.head_ref }}
	# make sure the parent commit is grabbed as well, because
	# that's what will get formatted (i.e. the most recent commit)
	fetch-depth: 2
	- name: Get all src files that have changed
	id: changed-files
	uses: tj-actions/changed-files@v37
	with:
	files_yaml: \|
	src:
	- src/*/.c
	- src/*/.h
	- src/*/.cpp
	- src/*/.hpp
	- name: List all changed src files
	run: \|
	for file in ${{ steps.changed-files.outputs.src_all_changed_files }}; do
	echo "$file was changed"
	done
	- name: Apply formatting
	if: steps.changed-files.outputs.src_any_changed == 'true'
	run: \|
	sudo apt install clang-format
	for file in ${{ steps.changed-files.outputs.src_all_changed_files }}; do
	echo "clang-format -i '$file'"
	clang-format -style=file -i "$file"
	done
	# commit the changes (if there are any)
	- name: Commit changes
	uses: stefanzweifel/git-auto-commit-action@v4.1.2
	with:
	commit_message: 🎨 apply clang-format changes
	branch: ${{ github.head_ref }}

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